A method and assembly for completing a wellbore having a production interval which, in turn, has at least one trouble zone (i.e. unproductive zone) intermediate two productive zones. A well assembly is lowered to position and cement a scab conduit across the trouble zone to seal the zone off from the rest of the open-hole production interval before completing the well by casing the wellbore and gravel-packing the production interval.
|
1. A method for completing a production interval of a wellbore wherein said production interval has at least one trouble zone intermediate two productives zones, said method comprising:
locating said at least trouble zone within said production interval; positioning a scab conduit across said trouble zone while leaving said two productive zones open to said wellbore; and cementing said scab conduit in said wellbore to thereby seal off said at least one trouble zone from said wellbore.
13. A well assembly for completing a production interval of a wellbore which has at least one trouble zone lying between two productive zones; said assembly comprising:
a scab conduit having (a) a length greater than the thickness of said trouble zone and sufficient to extend across said trouble zone when in an operable position and (b) a diameter slightly less than that of the wellbore through said trouble zone; a float shoe or the like having a passage therethrough affixed to the lower end of said scab conduit; and a workstring releasably connected to said float shoe and in fluid communication with said passage in said shoe.
5. A method for completing a production interval of a well wherein said production interval has at least one trouble zone intermediate two productives zones, said method comprising:
drilling a wellbore through said production interval; logging said wellbore to locate said trouble zone within said production interval; enlarging the diameter of said wellbore to a point substantially adjacent the bottom of said at least one trouble zone to thereby provide a shoulder in the wellbore adjacent the bottom of said at least one trouble zone; lowering a scab conduit on a workstring, said conduit having (a) a length greater than the thickness of said at least one trouble zone so that said conduit will extend across said zone when it in an operable position and (b) a diameter slightly smaller that the enlarged diameter of said wellbore; positioning said scab conduit onto said shoulder whereby an annulus is formed between said conduit and said wellbore; and flowing cement through said workstring and into said annulus behind said scab conduit to cement said conduit within said wellbore and thereby seal off said at least one trouble zone.
2. The method of
gravel packing said production interval after said scab conduit has been cemented within said wellbore.
3. The method of
underreaming both of said productive zones which lie above and below, respectively, said scab conduit; positioning a fluid-permeable liner within said wellbore whereby said liner will traverse across said scab conduit and both of said two productive zones; and filling both of said underreamed productive zones and the annulus formed between said scab conduit and said wellbore with gravel.
4. The method of
6. The method of
blocking off said wellbore below said shoulder prior to lowering said scab conduit.
8. The method of
9. The method of
affixing said scab conduit to the outer perimeter of a float shoe which has a passage therethrough; threading said workstring into said passage of said float shoe; lowering said scab conduit and float shoe in said wellbore onto said shoulder; flowing cement down said workstring, out said passage in said float shoe, and into said annulus behind said scab conduit; allowing said cement to harden; and unthreading said workstring from said shoe and removing said workstring.
10. The method of
lowering a drill string into said wellbore and through said scab conduit and drilling out said float shoe and said plug to open said wellbore.
11. The method of
gravel packing said production interval after said wellbore below said scab conduit has been opened.
12. The method of
underreaming both of said productive zones which lie above and below, respectively, said scab conduit; positioning a fluid-permeable liner within said wellbore whereby said liner will tranvese across said scab conduit and both of said two productive zones; and filling both of said underreamed productive zones and the annulus formed between said liner and said scab conduit with gravel.
15. The well assembly of
16. The well assembly of
a drill guide positioned within said upper end of said scab conduit and affixed thereto.
|
1. Technical Field
The present invention relates to a well completion method and apparatus and in one of its aspects relates to a method and assembly using a scab conduit to seal off a trouble zone which lies between two productive zones within an open-hole, production interval of a wellbore.
2. Background
It is not uncommon to use an "open hole" completion when producing hydrocarbons or the like from subterranean formations. An "open hole" completion is one wherein a wellbore is drilled through the production interval but is only cased to top of the production interval thereby leaving the production interval uncased and open to the wellbore. This open interval is then often underreamed and gravel packed before the well is put on production.
Unfortunately, however, many production intervals have at least one "trouble zone" which lies between two production zones. As used herein, "trouble zone" is intended to cover those zones within an open production interval which do not contribute to the economic operation of the well and which, in many cases, actually hinder the operation of the well. Some examples of such trouble zones include those zones which produce excessive water and/or gas, and may also include zones which produce undesirable steam and/or bitumen flows into wellbore of wells which are drilled in geothermal areas.
When such trouble zones occur in a production interval, it is desirable to seal off and eliminate these zones before the well is put on production. When the trouble zone lies below a productive zone, this can easily be accomplished by merely plugging back the wellbore to a point above the trouble zone with cement prior to the casing and completion of the well. Likewise, if a trouble zone lies above the productive zone, the trouble zone can be easily isolated by merely casing the wellbore all the way down to the bottom of the trouble zone. However, isolating or sealing off the trouble zone becomes a much more difficult problem when the trouble zone lies between two productive zones in a production interval where the production interval is to be completed with an open-hole, gravel pack completion.
Several different techniques have been proposed for isolating an intermediate trouble zone within an open-hole, production interval which include the following: (1) drilling and completing a separate well for each productive zone of the production interval; (2) setting a slotted liner which extends through the entire production interval but leaving the section of liner which lies adjacent the trouble zone blank and, in some instances, then cementing behind only the blank section of the liner; (3) merely leaving the entire production interval open or leaving the entire production interval open and then attempting to isolate the trouble zone with a remedial workover following completion, i.e. casing, of the well; and (4) casing the wellbore to a point below the trouble zone and then milling out those portions of the casing which lie adjacent the productive zones with the portions of the casing to be milled preferably being made from fiberglass or some other easily millable material. While each of these techniques may do the job for a particular application, there still exists a need for a more convenient and/or less expensive method to seal off such trouble zones in open hole completions.
The present invention provides a method and assembly for completing a wellbore having a production interval which, in turn, has at least one trouble zone intermediate two productive zones. As noted above, a "trouble zone" is a zone within an open production interval which does not contribute to the economic operation of the well and which may actually hinder the operation of the well. Basically, the present invention involves locating the depth and determining the thickness of the trouble zone and then cementing a scab conduit across the zone to seal the zone off from the rest of the open-hole production interval before casing the wellbore and gravel-packing the production interval.
More specifically, the present invention involves drilling a wellbore through the production interval and logging the wellbore to locate the depth and determine the thickness of the trouble zone(s). The wellbore is reamed to the bottom of the trouble zone to produce a shoulder at that point. A tapered plug is dropped onto the shoulder to block the wellbore at that point.
A well assembly is made up at the surface and is comprised of a section of "scab" conduit which has a length slightly greater than the thickness of the trouble zone and an outer diameter which is slightly less than the reamed diameter of wellbore. The lower end of the scab conduit is affixed with a float shoe or the like which has a passage therethrough. A workstring (e.g. drill string) is releasably connected (e.g. by threads) to the passage in float shoe.
The well assembly is lowered until it engages the plug in the wellbore. Cement is pumped down the worksting, out the shoe, and into the annulus which is formed between the scab conduit and the wellbore. After the desired amount of cement has been pumped into the workstring, a plug or "dart" is pumped down the workstring to displace the remaining cement out of the workstring. The workstring is then unthreaded from shoe and is raised slightly so that any excess cement can be circulated out of the wellbore.
The workstring is then removed and a bit is lowered on a drillstring. As the string reaches the scab casing, the drill bit will be diverted by a drill guide on the upper end of the scab casing into and through the casing so that the bit can drill out both the shoe and the tapered plug to thereby reopen the wellbore below the now-cased, trouble zone.
In instances, where there may be more than one trouble zone within a production interval, the same procedure as described above is used to case the lowermost trouble zone first, then the next higher trouble zone, and so on. When all of the trouble zones within a production interval have been sealed off as described above, the wellbore is completed by casing the wellbore to the top of the production interval and then gravel packing the openhole, production interval. The gravel packing is preferably carried out by first underreaming the productive zones and then setting a fluid-permeable liner across the production interval. Gravel is then deposited around the liner throughout the production interval. Once the wellbore has been completed, production equipment (e.g. tubing strings, packers, etc.) is installed and the well is put on production.
The actual construction, operation, and apparent advantages of the present invention will be better understood by referring to the drawings in which like numerals identify like parts and in which:
FIG. 1 is an elevational view, partly in section, of the lower portion of a typical wellbore in which the present invention is being carried out;
FIG. 2 is an elevational view, partly in section, of the wellbore of FIG. 2 after the wellbore has been completed in accordance with the present invention; and
FIG. 3 is a cross-sectional view taken along line 3--3 of FIG. 1 with the workstring removed.
Referring now to the drawings, FIG. 1 illustrates the lower end of a typical wellbore in which the present invention is applicable. That is, wellbore 10 penetrates a production interval 11 which is comprised of at least one "trouble zone" 12 which, in turn, lies between an upper productive zone 13 and a lower productive zone 14. As used herein, "trouble zone" is intended to cover those zones within an open production interval which do not contribute to the economic operation of the well and which, in many cases, actually hinder the operation of the well. Some examples of such trouble zones include those zones which produce excessive water and/or gas or which may produce steam and/or bitumen flows where the wellbore Penetrates geothermal formations.
Wellbore 10 is drilled from the surface and through the production interval 11. The well is then logged in accordance with well known procedures to locate the depth and thickness of trouble zone(s) 12 (only one shown). Next, wellbore 10 is reamed to enlarge its diameter to a depth substantially adjacent the bottom of trouble zone 12 thereby producing an annular shoulder 15 at that point. If there is more than one trouble zone within a particular production interval, the lowermost trouble zone will be addressed first.
At some point in time, well assembly 16 is made up at the surface. Assembly 16 is comprised of a section of "scab" conduit 17 (e.g. regular well casing) which has a length slightly greater than the thickness of said trouble zone 12 so it will extend through zone 12 when the assembly is in an operable position within the wellbore. Scab conduit 17 has an outer diameter which is slightly less than the reamed diameter of wellbore 10 whereby an annulus 18 is formed when conduit 17 is in an operable position within the wellbore. The lower end of scab conduit 17 is affixed with a float shoe 19 or the like. Shoe 19 has a passage 23 therethrough which is closed against upward flow by a spring-assisted, check valve 24. Shoes or subs such as float shoe 19 are well known and are commercially-available from a variety of suppliers. Preferably, shoe 19 is a commercially-available, "screw-in" float shoe with a latch-down means.
Drill guide 20 is positioned in and is attached to the upper end of scab conduit 17. The funnel-like, drill guide 20, the purpose of which will become obvious from the following description, is flared at its top and has a plurality of radially-spaced flutes or slots 21 (FIGS. 1 and 3) to allow fluid to flow past the scab conduit 17. Also, as will be understood by those skilled in the well cementing art, casing centralizers (not shown) are preferably positioned on the outer surface of conduit 17 similarly as is done in standard cementing operations to center conduit 17 within the wellbore. A workstring 22 (e.g. drill string) is releasably connected (e.g. by threads) to the passage 23 in float shoe 19 so that fluid flowing through the workstring will flow around check valve 24 and out of shoe 19.
Next, a tapered plug 25 or the like is dropped down wellbore 10 and onto shoulder 15 to thereby pack-off and block flow through the wellbore at that point. Plug 25 is preferably made of cement or other easily drillable material for a purpose described below. Well assembly 16 is then lowered until it engages plug 25. Both the workstring 22 and the wellbore above the plug 22 will be filled with fluid (e.g. drilling mud) as assembly 16 is lowered into the wellbore. Cement is then pumped down workstring 22, through passage 23 in shoe 19, and into annulus 18 behind scab conduit 17. Preferably, approximately double the amount of cement calculated as needed to fill annulus 18 is pumped to insure that a good bond will be acquired between the wellbore and the conduit. Flutes 21 in drill guide 20 allows the excess cement to flow pass the top of the conduit and into the wellbore. Also, as will be recognized by those skilled in the well cementing art, assembly 16 will be slightly reciprocated by workstring 22 during the pumping of the cement which improves the compactness of the cement behind the conduit and which provides adequate space between the bottom of shoe 17 and the top of plug 25 for the cement to readily flow from the shoe and into the annulus 18.
After the desired amount of cement has been pumped into the workstring, a standard-type plug or "dart" (not shown) such as those used in routine well cementing operations, is positioned onto the cement in worksting. A spacer-slug of water or the like, followed by drilling mud, is pumped down workstring 22 to displace the cement out of the workstring. As the dart reaches shoe 19, it engages and is latched therein to thereby close passage 23 against downward flow.
Next, the pressure in worksting 22 is bled off to determine if there is any back flow in the workstring. The worksting is then picked up to take the weight off the string so that it can be easily unthreaded from shoe 19. A expansion joint, e.g. bumper sub (not shown) may be incorporated into workstring 22 near shoe 19 to aid in determining when the workstring become released from the shoe. The workstring is then picked up to a point just above the shoe and drilling mud is circulated through the wellbore to remove excess cement.
The workstring is then removed from the hole. After adequate curing time for the cement has passed, a bit (not shown) is lowered on a drillstring (e.g. workstring 22). As it reaches scab casing 17, the bit will be directed by guide 20 into the casing with substantially no damage to the conduit. The drillstring is then rotated to drill out both the shoe 19 and the plug 25, thereby reopening the wellbore below the trouble zone 12.
In instances, where there may be a plurity of trouble zones (only one shown) which lies between two different productive zones within a production interval, the lowermost trouble zone will cased first, then the next higher trouble zone, and so on. Each additional trouble zone will be cased exactly in the same manner as described above. That is, the wellbore will be reamed to further enlarge the diameter of the wellbore to a depth adjacent the bottom of the next upper trouble zone to be cased thereby providing a new shoulder at that point. A plug such as cement plug 25 will be landed on the new shoulder and a well assembly such as assembly 16 will be lowered to cement a scab conduit across the upper trouble zone precisely as described above.
When all of the trouble zones within a production interval have been sealed off as described above, wellbore 10 is then completed. That is, wellbore 10 is cased to a point approximately adjacent the top of production interval 11 and then the production interval 11 is completed with an open-hole, gravel pack completion. As shown in FIG. 2, wellbore 10 is cased and cemented (i.e. casing 30, cement 31) to a point approximately adjacent the top of the production interval 11. Then, both the upper and lower productive zones 13, 14, respectively, are underreamed in accordance with known procedures and a fluid-permeable liner 32 or the like is positioned to extend across production interval 11. As used herein, "fluid-permeable liner" is meant to be generic and may include any and all types of liners (e.g. screens, slotted pipes, screened pipes, perforated liners, pre-packed screens and/or liners, combinations of same, etc.) which are used or could be used in well completions of this general type. As will be recognized by those skilled in the art, there are presently several known suppliers from whom such "liners" are readily commercially available. The liner may be of a continuous length, as shown, or it may be comprised of a plurality of segments connected by subs or "blanks".
Next, as will be understood in the art, a gravel slurry is flowed down a standard gravel pack workstring and necessary cross-overs (not shown) to deposit gravel 33 in and to fill the underreamed, productive intervals 13, 14 and the annulus formed between the scab casing 17 and liner 32. "Gravel" as used herein is intended to include all particulate and/or aggregate materials (e.g. gravel, sand, combinations, etc.) which are used or can be used in gravel pack or fractured completions. As known in the art, the "gravel" particles used in a particular situation are sized so as to block or filter out the particulates which may be produced with the well fluids from the productive zones.
Once the wellbore 10 has been completed and the production interval gravel packed, production equipment (e.g. tubing strings, packers, etc. ) can now be installed and the well is ready to be put on production.
Dillon, Patrick W., Billings, William C.
Patent | Priority | Assignee | Title |
10683734, | Mar 31 2016 | Halliburton Energy Services, Inc | Dissolvable casing liner |
5718288, | Mar 25 1993 | NOBILEAU, MR PHILIPPE | Method of cementing deformable casing inside a borehole or a conduit |
5842518, | Oct 14 1997 | ConocoPhillips Company | Method for drilling a well in unconsolidated and/or abnormally pressured formations |
6470966, | Dec 07 1998 | ENVENTURE GLOBAL TECHNOLOGY, INC | Apparatus for forming wellbore casing |
6497289, | Dec 07 1998 | ENVENTURE GLOBAL TECHNOLOGY, L L C | Method of creating a casing in a borehole |
6557640, | Dec 07 1998 | Enventure Global Technology, LLC | Lubrication and self-cleaning system for expansion mandrel |
6561227, | Dec 07 1998 | Enventure Global Technology, LLC | Wellbore casing |
6568471, | Feb 26 1999 | Halliburton Energy Services, Inc | Liner hanger |
6575240, | Dec 07 1998 | Shell Oil Company | System and method for driving pipe |
6575250, | Nov 15 1999 | Shell Oil Company | Expanding a tubular element in a wellbore |
6631759, | Feb 26 1999 | Enventure Global Technology, LLC | Apparatus for radially expanding a tubular member |
6631760, | Dec 07 1998 | Enventure Global Technology, LLC | Tie back liner for a well system |
6631769, | Feb 26 1999 | Enventure Global Technology, LLC | Method of operating an apparatus for radially expanding a tubular member |
6634431, | Nov 16 1998 | Enventure Global Technology, LLC | Isolation of subterranean zones |
6640903, | Dec 07 1998 | Enventure Global Technology, LLC | Forming a wellbore casing while simultaneously drilling a wellbore |
6684947, | Feb 26 1999 | Enventure Global Technology, LLC | Apparatus for radially expanding a tubular member |
6705395, | Feb 26 1999 | Enventure Global Technology, LLC | Wellbore casing |
6712154, | Nov 16 1998 | Enventure Global Technology | Isolation of subterranean zones |
6725919, | Dec 07 1998 | Enventure Global Technology, LLC | Forming a wellbore casing while simultaneously drilling a wellbore |
6739392, | Dec 07 1998 | Halliburton Energy Services, Inc | Forming a wellbore casing while simultaneously drilling a wellbore |
6745845, | Nov 16 1998 | Enventure Global Technology, LLC | Isolation of subterranean zones |
6758278, | Dec 07 1998 | Enventure Global Technology, LLC | Forming a wellbore casing while simultaneously drilling a wellbore |
6823937, | Dec 07 1998 | Enventure Global Technology, LLC | Wellhead |
6857473, | Feb 26 1999 | Enventure Global Technology, LLC | Method of coupling a tubular member to a preexisting structure |
6892819, | Dec 07 1998 | ENVENTURE GLOBAL TECHNOLOGY, INC F K A ENVENTURE GLOBAL TECHNOLOGY, L L C | Forming a wellbore casing while simultaneously drilling a wellbore |
6966370, | Feb 26 1999 | Enventure Global Technology, LLC | Apparatus for actuating an annular piston |
6968618, | Apr 26 1999 | Enventure Global Technology, LLC | Expandable connector |
6976541, | Sep 18 2000 | Enventure Global Technology, LLC | Liner hanger with sliding sleeve valve |
7011161, | Dec 07 1998 | Enventure Global Technology, LLC | Structural support |
7036582, | Dec 07 1998 | Shell Oil Company | Expansion cone for radially expanding tubular members |
7040396, | Feb 26 1999 | Shell Oil Company | Apparatus for releasably coupling two elements |
7044218, | Dec 07 1998 | Shell Oil Company | Apparatus for radially expanding tubular members |
7044221, | Feb 26 1999 | Enventure Global Technology, LLC | Apparatus for coupling a tubular member to a preexisting structure |
7048062, | Dec 07 1998 | Enventure Global Technology, LLC | Method of selecting tubular members |
7048067, | Nov 01 1999 | Enventure Global Technology, LLC | Wellbore casing repair |
7055608, | Mar 11 1999 | ENVENTURE GLOBAL TECHNOLOGY, INC | Forming a wellbore casing while simultaneously drilling a wellbore |
7063142, | Feb 26 1999 | Enventure Global Technology, LLC | Method of applying an axial force to an expansion cone |
7077211, | Dec 07 1998 | ENVENTURE GLOBAL TECHNOLOGY, INC | Method of creating a casing in a borehole |
7077213, | Dec 07 1998 | Shell Oil Company | Expansion cone for radially expanding tubular members |
7100684, | Jul 28 2000 | Enventure Global Technology | Liner hanger with standoffs |
7100685, | Oct 02 2000 | Shell Oil Company | Mono-diameter wellbore casing |
7108061, | Dec 07 1998 | Shell Oil Company | Expander for a tapered liner with a shoe |
7108072, | Nov 16 1998 | Shell Oil Company | Lubrication and self-cleaning system for expansion mandrel |
7121337, | Dec 07 1998 | Enventure Global Technology, LLC | Apparatus for expanding a tubular member |
7121352, | Nov 16 1998 | Enventure Global Technology | Isolation of subterranean zones |
7146702, | Oct 02 2000 | Enventure Global Technology, LLC | Method and apparatus for forming a mono-diameter wellbore casing |
7147053, | Feb 11 1999 | Enventure Global Technology, LLC | Wellhead |
7159665, | Dec 07 1998 | ENVENTURE GLOBAL TECHNOLOGY, INC | Wellbore casing |
7159667, | Feb 26 1999 | Shell Oil Company | Method of coupling a tubular member to a preexisting structure |
7168496, | Jul 06 2001 | Eventure Global Technology | Liner hanger |
7168499, | Nov 16 1998 | Shell Oil Company | Radial expansion of tubular members |
7172019, | Oct 02 2000 | Enventure Global Technology, LLC | Method and apparatus for forming a mono-diameter wellbore casing |
7172021, | Jan 22 2003 | Enventure Global Technology, LLC | Liner hanger with sliding sleeve valve |
7172024, | Oct 02 2000 | Enventure Global Technology, LLC | Mono-diameter wellbore casing |
7174964, | Dec 07 1998 | Shell Oil Company | Wellhead with radially expanded tubulars |
7195061, | Dec 07 1998 | Enventure Global Technology, LLC | Apparatus for expanding a tubular member |
7195064, | Dec 07 1998 | Enventure Global Technology | Mono-diameter wellbore casing |
7198100, | Dec 07 1998 | Shell Oil Company | Apparatus for expanding a tubular member |
7201223, | Oct 02 2000 | Shell Oil Company | Method and apparatus for forming a mono-diameter wellbore casing |
7204007, | Jun 13 2003 | Enventure Global Technology, LLC | Method and apparatus for forming a mono-diameter wellbore casing |
7216701, | Dec 07 1998 | Enventure Global Technology, LLC | Apparatus for expanding a tubular member |
7231975, | Oct 08 2001 | Schlumberger Technology Corporation | Borehole stabilisation |
7231985, | Nov 16 1998 | Shell Oil Company | Radial expansion of tubular members |
7234531, | Dec 07 1998 | Enventure Global Technology, LLC | Mono-diameter wellbore casing |
7240728, | Dec 07 1998 | Enventure Global Technology, LLC | Expandable tubulars with a radial passage and wall portions with different wall thicknesses |
7240729, | Dec 07 1998 | ENVENTURE GLOBAL TECHNOLOGY, INC | Apparatus for expanding a tubular member |
7246667, | Nov 16 1998 | Enventure Global Technology, LLC | Radial expansion of tubular members |
7258168, | Jul 27 2001 | Enventure Global Technology | Liner hanger with slip joint sealing members and method of use |
7270188, | Nov 16 1998 | Enventure Global Technology, LLC | Radial expansion of tubular members |
7275601, | Nov 16 1998 | Enventure Global Technology, LLC | Radial expansion of tubular members |
7290605, | Dec 27 2001 | Enventure Global Technology | Seal receptacle using expandable liner hanger |
7290616, | Jul 06 2001 | ENVENTURE GLOBAL TECHNOLOGY, INC | Liner hanger |
7299881, | Nov 16 1998 | Enventure Global Technology, LLC | Radial expansion of tubular members |
7308755, | Jun 13 2003 | Enventure Global Technology, LLC | Apparatus for forming a mono-diameter wellbore casing |
7325602, | Oct 02 2000 | Enventure Global Technology, LLC | Method and apparatus for forming a mono-diameter wellbore casing |
7350563, | Jul 09 1999 | Enventure Global Technology, L.L.C. | System for lining a wellbore casing |
7350564, | Dec 07 1998 | Enventure Global Technology | Mono-diameter wellbore casing |
7357188, | Dec 07 1998 | ENVENTURE GLOBAL TECHNOLOGY, L L C | Mono-diameter wellbore casing |
7357190, | Nov 16 1998 | Enventure Global Technology, LLC | Radial expansion of tubular members |
7360591, | May 29 2002 | Enventure Global Technology, LLC | System for radially expanding a tubular member |
7363690, | Oct 02 2000 | Enventure Global Technology, LLC | Method and apparatus for forming a mono-diameter wellbore casing |
7363691, | Oct 02 2000 | Enventure Global Technology, LLC | Method and apparatus for forming a mono-diameter wellbore casing |
7363984, | Dec 07 1998 | Halliburton Energy Services, Inc | System for radially expanding a tubular member |
7377326, | Aug 23 2002 | Enventure Global Technology, L.L.C. | Magnetic impulse applied sleeve method of forming a wellbore casing |
7383889, | Nov 12 2001 | Enventure Global Technology, LLC | Mono diameter wellbore casing |
7398832, | Jun 10 2002 | Enventure Global Technology, LLC | Mono-diameter wellbore casing |
7404444, | Sep 20 2002 | Enventure Global Technology | Protective sleeve for expandable tubulars |
7410000, | Jun 13 2003 | ENVENTURE GLOBAL TECHONOLGY | Mono-diameter wellbore casing |
7416027, | Sep 07 2001 | Enventure Global Technology, LLC | Adjustable expansion cone assembly |
7419009, | Apr 18 2003 | Enventure Global Technology, LLC | Apparatus for radially expanding and plastically deforming a tubular member |
7424918, | Aug 23 2002 | Enventure Global Technology, L.L.C. | Interposed joint sealing layer method of forming a wellbore casing |
7434618, | Dec 07 1998 | ENVENTURE GLOBAL TECHNOLOGY, INC | Apparatus for expanding a tubular member |
7438132, | Mar 11 1999 | Enventure Global Technology, LLC | Concentric pipes expanded at the pipe ends and method of forming |
7438133, | Feb 26 2003 | Enventure Global Technology, LLC | Apparatus and method for radially expanding and plastically deforming a tubular member |
7503393, | Jan 27 2003 | Enventure Global Technology, Inc. | Lubrication system for radially expanding tubular members |
7513313, | Sep 20 2002 | Enventure Global Technology, LLC | Bottom plug for forming a mono diameter wellbore casing |
7516790, | Dec 07 1998 | Enventure Global Technology, LLC | Mono-diameter wellbore casing |
7552776, | Dec 07 1998 | Enventure Global Technology | Anchor hangers |
7556092, | Feb 26 1999 | Enventure Global Technology, LLC | Flow control system for an apparatus for radially expanding tubular members |
7559365, | Nov 12 2001 | ENVENTURE GLOBAL TECHNOLOGY, L L C | Collapsible expansion cone |
7571774, | Sep 20 2002 | Eventure Global Technology | Self-lubricating expansion mandrel for expandable tubular |
7603758, | Dec 07 1998 | Enventure Global Technology, LLC | Method of coupling a tubular member |
7665532, | Dec 07 1998 | ENVENTURE GLOBAL TECHNOLOGY, INC | Pipeline |
7712522, | May 09 2006 | Enventure Global Technology | Expansion cone and system |
7739917, | Sep 20 2002 | Enventure Global Technology, LLC | Pipe formability evaluation for expandable tubulars |
7740076, | Apr 12 2002 | Enventure Global Technology, L.L.C. | Protective sleeve for threaded connections for expandable liner hanger |
7743829, | Oct 23 2002 | Downhole Products Limited | Cement flow control tool |
7775290, | Nov 12 2001 | Enventure Global Technology | Apparatus for radially expanding and plastically deforming a tubular member |
7793721, | Mar 11 2003 | Eventure Global Technology, LLC | Apparatus for radially expanding and plastically deforming a tubular member |
7819185, | Aug 13 2004 | ENVENTURE GLOBAL TECHNOLOGY, L L C | Expandable tubular |
7886831, | Jan 22 2003 | EVENTURE GLOBAL TECHNOLOGY, L L C ; ENVENTURE GLOBAL TECHNOLOGY, L L C | Apparatus for radially expanding and plastically deforming a tubular member |
7918284, | Apr 15 2002 | ENVENTURE GLOBAL TECHNOLOGY, INC | Protective sleeve for threaded connections for expandable liner hanger |
8863836, | Apr 06 2010 | Chevron U.S.A. Inc. | Systems and methods for logging cased wellbores |
9121265, | Aug 18 2011 | Baker Hughes Incorporated | Full flow gun system for monobore completions |
Patent | Priority | Assignee | Title |
3865188, | |||
4474243, | Oct 06 1980 | Exxon Production Research Co. | Method and apparatus for running and cementing pipe |
4759408, | Jun 08 1987 | Texaco Inc. | Method of shutting off a portion of a producing zone in a hydrocarbon producing well |
5145004, | Mar 12 1991 | Atlantic Richfield Company | Multiple gravel pack well completions |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Apr 08 1993 | DILLON, PATRICK W | Mobil Oil Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006526 | /0876 | |
Apr 08 1993 | BILLINGS, WILLIAM C | Mobil Oil Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006526 | /0876 | |
Apr 19 1993 | Mobil Oil Corporation | (assignment on the face of the patent) | / |
Date | Maintenance Fee Events |
Nov 10 1997 | M183: Payment of Maintenance Fee, 4th Year, Large Entity. |
Apr 02 2002 | REM: Maintenance Fee Reminder Mailed. |
Sep 13 2002 | EXP: Patent Expired for Failure to Pay Maintenance Fees. |
Date | Maintenance Schedule |
Sep 13 1997 | 4 years fee payment window open |
Mar 13 1998 | 6 months grace period start (w surcharge) |
Sep 13 1998 | patent expiry (for year 4) |
Sep 13 2000 | 2 years to revive unintentionally abandoned end. (for year 4) |
Sep 13 2001 | 8 years fee payment window open |
Mar 13 2002 | 6 months grace period start (w surcharge) |
Sep 13 2002 | patent expiry (for year 8) |
Sep 13 2004 | 2 years to revive unintentionally abandoned end. (for year 8) |
Sep 13 2005 | 12 years fee payment window open |
Mar 13 2006 | 6 months grace period start (w surcharge) |
Sep 13 2006 | patent expiry (for year 12) |
Sep 13 2008 | 2 years to revive unintentionally abandoned end. (for year 12) |